Multiattack. make two morningstar attacks
Morningstar. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 21 (3d8 +8) piercing damage.
Rock. Ranged Weapon Attack: +12 to hit, range 60/240 ft., one target. Hit: 30 (4d10 +8) bludgeoning damage.
Fog Cloud. Create a cloud of radius 3 that blocks line of sight.
Misty Step. 3 uses Teleport 6 as a bonus action.DC 16 save
Fly. 3 uses Target creature gains flight until end of battle. Flight speed of 12.DC 16 save
Gaseous Form. 1 uses Transform target into misty cloud. Target gains resistance to all non-magical damage. Target gains flight speed of 2. Target does not need to squeeze. Target can not attack or cast spells or manipulate objects. Target has advantage on Strength, Dexterity, and Constitution saves.DC 16 save